A 40 kg box has an initial velocity of 6 m/s down a 30-degree inclined plane at an initial height of 4 meters. The coefficient of friction between the box and the ground is 0.4. [b] Calculate the work done by friction.

Q: Suppose a person wishes to lift a large rock with a lever. If the rock has a mass of 250kg and is…

A:

Q: What happens to F21 if q2 is changed and q1 is keptconstant?.

A: Given that, First charge = q1 Second charge =q2 Force =F21

Q: Ex. 52 M.I. of the solid sphere about its diameter is 25 kg-m². Find its M.I. about the tangent 2…

A: To find-M.I. of a solid sphere about a tangentGiven-M.I. of solid sphere about its diameter is 25 kg…

Q: .A CD-ROM drive in a computer spins the 12-cm-diameter disks at 7300 rpm. What is a disk's period in…

A: Given that:Diameter of disk, d=12 cmRotational speed of disk, ω=7300 rpm

Q: Delermine the magnitude of the iesultant force of the Coplanar torce system shown in the frqure…

A:

Q: Given: XW = 48.85 ft and weight of W = 652 lb, 0 = 36° %3D Solve for the tension in XW connected to…

A: Given data- XW= 48.85 ft Weight W= 652 lb Angle= 36 degrees

Q: particle P travels with constant speed on a circle of radius r = 3.00 m (see the figure) and…

A: A vector's magnitude tells us how long it is, whereas its direction tells us in which direction it…

Q: A wheel turns 2 revs in 4s. What is w?

A:

Q: QS Could the parallelogram imethod be used to add four vectors (in one step)? Yes/No

A: It is not possible to add four vectors in one step using parallelogram method.

Q: A tire moving with initial velocity moves up an incline and begins to slow down but hasn't stopped…

A: Refer the FBD of wheel. As it is ascending with decceleration so,

Q: In the ride shown, child A sits in a seat attached by a cable of length Z to a freely moving trolley…

A:

Q: Convert 35 rad/sec to RPM

A:

Q: Let R be the distance between the cylinder and the center of the turntable. Now assume that the…

A: Given Data: The distance between the cylinder and the turntable is R.

Q: talk about the p63 and explain its functionality

A: Tumor protein p63 is referred as p63 and also called as transformation related protein 63. It is a…

Q: Moment of inertia is   A. vector B. scalar C. phasor D. tensor

A: Tensor

Q: Determine magnitude moment produced by force F of 2へ about axis extending between B and C A B

A: Given,

Q: A 4m board weighing 60 N extends out over the edge of the table with 40% of the board's length off…

A:

Q: What is the average linear speed of the Earth about the Sun?

A: The given data are: r=1.496×1011 mT=365 days=365×24×3600 s=31536000 s Here, r denotes the distance…

Q: Part A Acre cmn demte The ceavelingtaped at 100 m/s What the trtation erey in rpa? Express your…

A: Given data d=0.65 mv=19 m/s Here, d is the diameter of the tire. While v is the speed of the Tyre.…

Q: For the section shown, find the second moment of area about axis XX 25.0 mm 3.0 mm 18.0mm 5.0 mm

A:

Q: Gear X has 10 teeth and is connected to gear Y which has 40. How many times will gear X turn for Y?

A: Given: Teeth on Gear X = 10 Teeth on Gear Y = 40 Find : Number of RPM of Gear X for Y

Q: R1 = 20 Q R2 = 12 Q R3 = 16 Q %3D R4 = 24 0 %3D Rs = 10 0 R2 R3 io R1 Rs 10 A R.

A: Given   R 1 = 20Ω  R = 12Ω   R 3 = 16 Ω   R4 = 24Ω   R5 = 10Ω       I = 10 Amp

Q: the number of revolutions completed in one second is known as

A: The number of revolutions completed in one second is known as : _______  Solution :-

Q: A disk spins at 4.0 revolutions/second. What is its period, in second?

A:

Q: what is the angular speed of seconds hand of a clock . a. 0.972 rad/s b. 0.105 rad/s c. 0.322…

A:

Q: Find the angle at which the torque is minimum O a. 90 O b. 30 O c. 60 O d. 45

A:

Q: 50N Determine the following. a. Resultant moment at A b. Resultant moment at B 90N 80 N im

A: forces given ; 90, 70, 80, 50;   we have to find resultant moment at A & B

Q: The magnitude of the force P is 458 N. Determine the magnitude of the moment (Nm) of P about point…

A: Given:Magnitude of force, P = 458 N Also from the given figure OD→ = 500i^ m = 0.5i^ mOE→ = 600j^ mm…

Q: Deferming the ang. accelerats of rolating body which shows down from 500 rpm to test in 10 seconds.

A: To find-Angular acceleration (α)=?Given-n1=500 rpm=8.333 rpsn2=0 rpm=0 rps

Q: The London eye has a diameter of 140 m it revolves at a constant rate and takes 20 min to complete…

A: Diameter = 140 m Radius, r = 0.5 x 140 = 70 m It revolves at a constant rate and takes 20 minutes…

Q: 1 4. The plot below shows the velocity of a hockey puck as a function of time. The puck starts at…

A: We are given velocity versus time graph. We draw position vs time and acceleration vs time graph by…

Q: example Homeware MB MA 7777777 30 MA = 30 kg MB = 10kg VALO V₁=0 Determine the acceleration of…

A: FBD of the block and the wedge.

Q: A couple riding a Ferris wheel covers a distance of 3,000 m around the circle of diameter 40 m. What…

A:

Q: the engine of an unpowered toy train is rolling at a  constant

A: the engine of an unpowered toy train is rolling at a  constant

Q: 1. What physical quantity determines the numeric value tga graph of dependense of the angle of…

A:

Q: A bricklayer hits a screw with a hammer and drives it into a ceiling. If the hammer hits the nail…

A: The distance travelled is directly proportional to the velocity of hanmer.  According to impulse,…

Q: 0.12-m-radius grinding wheel takes 5.5 s to speed upfrom 2.0 rad/s to 11.0 rad/s. What is the…

A: Given: The radius of the wheel is 0.12 m. The time interval is 5.5 s. The initial angular speed is 2…

Q: Discuss how human factors have shaped the design of the television remote control and identify its…

A: The human factors that have helped in shaping the design of television remote control are  1) This…